Finding the Fourth Proportional to 69.96, 105.04 and 42.83

Step by Step Solution

1. Step 1: Write the proportion equation
   69.96 : 105.04 = 42.83 : x
2. Step 2: Convert to fraction form
   69.96/105.04 = 42.83/x
3. Step 3: Cross multiply
   69.96x = 105.04 × 42.83
4. Step 4: Simplify right side
   69.96x = 4,498.34
5. Step 5: Solve for x
   x = 4,498.34/69.96
6. Step 6: Final answer
   x = 64.30